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| 巢湖流域旱涝时空特性分析 | |
| 引用本文： | 袁媛,王心源,李祥,张广胜.巢湖流域旱涝时空特性分析[J].灾害学,2007,22(2):97-100. |
| 作者姓名： | 袁媛 王心源 李祥 张广胜 |
| 作者单位： | 1. 安徽师范大学,国土资源与旅游学院遥感实验室,安徽,芜湖,241000 2. 安徽师范大学,国土资源与旅游学院遥感实验室,安徽,芜湖,241000;中国科技大学,地球与空间科学系,安徽,合肥,230026 3. 安徽师范大学,国土资源与旅游学院遥感实验室,安徽,芜湖,241000;皖西学院,城市建设与环境系,安徽,六安,237012 |
| 基金项目： | 国家自然科学基金;安徽省自然科学基金 |
| 摘 要： | 利用巢湖流域14个站点39年(1961~2000年)的降水观测资料,采用Z指数作为旱涝指标,运用地理信息系统(GIS)等方法,对巢湖流域汛期旱涝的时空变化特征进行了分析探讨,其结果表明:巢湖流域旱涝灾害十分频繁,旱涝灾害发生的频率和降水量呈现正相关关系,具有阶段性和周期性等特性,空间分布上存在一定的结构性,巢湖流域北部为易旱易涝区,西部为易旱区,东南部、南部是易涝区,中北部是不易旱易涝区。 |
| 关 键 词： | 巢湖流域 降水 旱涝灾害 时空特性 |
| 文章编号： | 1000-811X（2007）02-0097-04 |
| 修稿时间： | 2006-11-06 |
Analysis of the Spatial-Temporal Characteristics of Flood and Drought in Chaohu Basin |
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| Yuan Yuan,Wang Xinyuan,Li Xiang,Zhang Guangsheng.Analysis of the Spatial-Temporal Characteristics of Flood and Drought in Chaohu Basin[J].Journal of Catastrophology,2007,22(2):97-100. | |
| Authors: | Yuan Yuan Wang Xinyuan Li Xiang Zhang Guangsheng |
| Abstract: | Based on the precipitation data of the 14 observing stations in Chaohu basin from 1961 to 2000,the spatial-temporal characteristics of precipitation in flood season are analyzed with the method of Z index and GIS.The results show that flood and drought disasters in Chaohu basin are frequent.There exists a positive correlation between the frequency of flood and drought and the precipitation.Flood and drought are periodicity.Their spatial distribution indicates a certain structure.The northern part of Chaohu basin is prone to flood and drought.The western part is prone to drought.The south-eastern and southern parts are vulnerable to flood.The northern central part is exposed to flood,instead of drought. |
| Keywords: | Chaohu basin precipitation flood and drought spatial-temporal distribution |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |